<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script>
        //  js代码

        /*
        function test01() {
            console.log("test01")
            test02()
        }

        function test02() {
            console.log("test02")
            test03()
        }

        function test03() {
            console.log("test03")
            test04()
        }

        function test04() {
            console.log("test04")
        }

        test01()  */

        function foo() {
            console.log("foo功能...")
            bar(11,22,33,44,55)
        }

        function bar(a, b, c, d, e) {
            console.log("bar功能...")
            console.log(a, b, c, d, e)
        }

        foo()

    </script>
</head>
<body>

</body>
</html>